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Wear and lifespan evaluation of solid lubricant in rotary compressors operating in a refrigerant oil environment.

Number: 1183

Author(s) : YOO J., CHOI S. G., KIM J. H., HEO I. K., PARK S. D., KIM B., LEE J. P., PARK J. Y.

Summary

The evaluation of the wear and lifespan of solid lubricants is derived in the components of rotary compressors operating in a refrigerant oil environment. Unlike conventional mechanical components that have established lifespan equations based on operating conditions, this research focuses on studying failure caused by mechanical wear. The objective is to derive a wear life equation according to various test conditions, and friction experiments were proceeded for this purpose. Considering the load application method of compressor, a pin-on-disc friction test method was employed, utilizing coated specimens to simulate real surface conditions. The friction tests were conducted, and the wear volume was measured at regular intervals during the test cycles. By employing lifespan calculation equations, the point at which the coating layer was delaminated could be determined. To ensure coating delamination, harsh conditions were implemented, surpassing conventional operating conditions. These harsh conditions were determined by conducting preliminary experiments, varying the parameters of load, speed, and temperature. The result is to derive the lifespan equation of coating delamination, comparing the acceleration life of compressor, lifespan of bearing in rotary compressor, and the lifespan with the experimentally obtained equation, and thereby assessing the differences. Additionally, the study aims to develop an evaluation method to investigate the effects of using different oil types. The findings will contribute to a better understanding of failure mechanisms and the development of evaluation techniques for rotary compressors operating in refrigerant oil environments.

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  • Original title: Wear and lifespan evaluation of solid lubricant in rotary compressors operating in a refrigerant oil environment.
  • Record ID : 30033058
  • Languages: English
  • Subject: Technology
  • Source: 2024 Purdue Conferences. 27th International Compressor Engineering Conference at Purdue.
  • Publication date: 2024/07/18

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